Driving under the influence (DUI), or in Michigan Operating While Intoxicated (OWI), is usually charged using a breath test result. However, due to the recently discovered breath testing fraud, more often Michigan DUI cases are charged using a blood test result. Breath test results are available immediately after the test is administered at the police station or jail. Blood sample results, however, can take weeks or months to be returned from the Michigan State Police (MSP) forensics lab. The prosecutor in a DUI case generally, but not always, waits for blood results to submit formal charges because if the result is over .08 then the case can be charged under Michigan’s Unlawful Blood Alcohol Level law. And if the test result is above a .17, then it is considered a super-drunk driving.
What is the Process That My Blood Sample Goes Through?
If you have gone through a Michigan DUI arrest that involved a blood sample, you may have noticed that the police officer provided special vials to be used for the sample. These blood collection vials come from a kit that is specifically made for police agencies in Michigan to collect blood samples for criminal investigations. There should be two vials with grey caps. Sodium fluoride should be in the vials to properly preserve the blood. The vials are sent to the Michigan State Police forensics lab in Lansing for testing. Once tested, the results are sent back to the arresting agency, and the prosecutor for that agency. The prosecutor will review the matter, and if appropriate, will file DUI charges against you in court. If the blood is being tested for alcohol only, the process usually takes three to six weeks. If it’s also being tested for drugs, it could take months. During the coronavirus pandemic, the results could take even longer to be returned.